<template>
    <div class="login_container">
        <div class="login_box">
            <!--头像-->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <!--登录表单-->
            <el-form ref="loginFormRef" :model="loginForm" :rules="loginRules" label-width="0px" class="login_form">
                <!--用户名-->
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
                </el-form-item>
                
                <!--密码-->
                <el-form-item prop="password">
                    <el-input type="password" v-model="loginForm.password" prefix-icon="iconfont icon-3702mima"></el-input>
                </el-form-item>
                
                <!--按钮-->
                <el-form-item class="btns">
                    <el-button type="success" @click="login">登录</el-button>
                    <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
export default {
    data(){
        return {
            // 登陆表单绑定数据
            loginForm:{
                username:'admin',
                password:'123456'
            },
            //表单验证规则
            loginRules: {
                username:[
                    {required:true, message:"请输入登录名称", trigger:"blur"},
                    {min:3, max:10, message:"长度在3~10个字符",trigger:"blur"}
                ],
                password:[
                    {required:true, message:"请输入登录密码", trigger:"blur"},
                    {min:6, max:15, message:"长度在6~15个字符",trigger:"blur"}
                ]
            }
        }
    },
    methods:{
        //重置登录表单
        resetLoginForm() {
            this.$refs.loginFormRef.resetFields();
        },
        login(){
            this.$refs.loginFormRef.validate(async valid =>{
                if(!valid) return;
                const {data:res}= await this.$http.post('login',this.loginForm);
                if(res.meta.status !== 200) return this.$message.error('登录失败！');
                this.$message.success('登录成功!');
                window.sessionStorage.setItem('token',res.data.token);
                this.$router.push('/home');
            });
        }
    }
};
</script>

<style lang="less" scoped>
.login_container{
    background-color: slateblue;
    height: 100%;
}

.login_box{
    width: 450px;
    height: 300px;
    background-color: snow;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
}
.avatar_box{
    height: 130px;
    width: 130px;
    border: 1px solid #eeeeee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #dddddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%,-50%);
    background-color: snow;
    img{
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eeeeee;
    }
}
.btns{
    display: flex;
    justify-content: flex-end;
}
.login_form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing:border-box ;
}
</style>